- Fix some typos in tutorial.
- Fix unhandled scenario in import/export.
- Implement enhanced timeout detection for WebWorker, aimed at restoring silently-failed WebWorker.
- This may mitigate a rare data loss scenario in Safari/Webkit browsers
- Implement recurring handshake protocol for currently open document.
- This may mitigate a rare data loss scenario in Safari/Webkit browsers.
- Change small display breakpoint for 3 column layout (previous hotfix).